Selecting skyline services for QoS-based web service composition
Selecting skyline services for QoS-based web service composition
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DOI：
10.1145/1772690.1772693
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发表时间：
2010-04
期刊：
影响因子：
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通讯作者：
Mohammad Alrifai;Dimitrios Skoutas;T. Risse
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文献类型：
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作者：
Mohammad Alrifai;Dimitrios Skoutas;T. Risse
Web服务组成可以使网络上的业务应用程序无缝而动态集成。组成应用程序的性能取决于所涉及的Web服务的性能。因此，服务方面的非功能性，服务质量对于选择Web服务参与组成至关重要。从一组功能等效的服务中确定最佳候选Web服务是一个多准则的决策问题。所选服务应优化组合应用程序的总QoS，同时满足客户对单个QoS参数的所有约束。在本文中，我们提出了一种基于天际线概念的方法，以有效有效地选择组成的服务，以减少要考虑的候选服务的数量。我们还讨论了提供商如何改善其服务以变得更有竞争力并提高其被纳入复合应用程序的潜力。我们使用真实和合成生成的数据集在实验中评估我们的方法。
Web service composition enables seamless and dynamic integration of business applications on the web. The performance of the composed application is determined by the performance of the involved web services. Therefore, non-functional, quality of service aspects are crucial for selecting the web services to take part in the composition. Identifying the best candidate web services from a set of functionally-equivalent services is a multi-criteria decision making problem. The selected services should optimize the overall QoS of the composed application, while satisfying all the constraints specified by the client on individual QoS parameters. In this paper, we propose an approach based on the notion of skyline to effectively and efficiently select services for composition, reducing the number of candidate services to be considered. We also discuss how a provider can improve its service to become more competitive and increase its potential of being included in composite applications. We evaluate our approach experimentally using both real and synthetically generated datasets.